HP 54501A - Program Message Syntax

Program
Message
Syntax
For
example,
if
the
instrument
address
for
the
HP
54501A
is
4
and
the
interface select code
is
7,
when
the
program
message
is
passed, the
routine
performs
its
function
on
the
instrument
at device
address
704.
For
the HP
54501A, the
instrument
address
is
typically
set to
"7"
at
the
factory.
This
address
can
be
changed
in
the
HP-IB
menu
of
the
Utility
menu.
Note
The
program
examples
in
this
manual
assume
the HP
54501A is
at
device
address
707.
To
program
the
instrument
over
the
bus,
you
must have
an
understanding
of
the
command format
and
structure
expected
by
the
instrument.
The
instrument
is
remotely
programmed
with
program messages.
These
are
composed
of
sequences
of
program
message
units, with
each unit
representing
a
program
command
or
query.
A
program
command
or
query
is
composed
of
a
sequence
of
functional
elements
that
include
separators,
headers,
program data,
and
terminators.
These
are
sent
to
the
instrument
over
the
system interface
as
a
sequence
of ASCII
data
messages.
For
example:
PROGRAM
MESSAGE
UNIT
DATA
OUTPUT
XXX;":SYSTEM:HEADER
ON"
T
COMMAND
——————————————————
E
ADDRESS
—————————————————————————
ONAL)
—————————————————————————————————
AM
MNEMONICS
——————————————————————————————
ATOR
—————————————————————————————————————————————————
Introduction
to
Programming
an
Oscilloscope
1-4
HP
54501A
Programming